Pressure compensating exhaust gas recirculation valve
US5927257A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1997 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Sep 19, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87692
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve assembly for use in an internal combustion engine is disclosed. The valve assembly includes a housing which defines a chamber. The housing further defines an outlet, a first inlet, and a second inlet, each of which is in fluid communication with the chamber. The valve assembly further includes a master valve positioned within the chamber. The master valve isolates the first inlet from the outlet when the master valve is positioned in a seated master position. The master valve places the first inlet in fluid communication with the outlet when the master valve is located in an open master position. The valve assembly still further includes a slave valve positioned within the chamber. The slave valve isolates the second inlet from the outlet when the slave valve is positioned in a seated slave position. The slave valve places the second inlet in fluid communication with the outlet when the slave valve is located in an open slave position. Movement of the master valve from the seated master position to the open master position causes movement of the slave valve from the seated slave position to the open slave position. The master valve moves a distance from the seated master po…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.